Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 1 | /* |
| 2 | * For Philips TEA5767 FM Chip used on some TV Cards like Prolink Pixelview |
| 3 | * I2C address is allways 0xC0. |
| 4 | * |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 5 | * |
Mauro Carvalho Chehab | 2e7c6dc | 2006-04-03 07:53:40 -0300 | [diff] [blame] | 6 | * Copyright (c) 2005 Mauro Carvalho Chehab (mchehab@infradead.org) |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 7 | * This code is placed under the terms of the GNU General Public License |
| 8 | * |
| 9 | * tea5767 autodetection thanks to Torsten Seeboth and Atsushi Nakagawa |
| 10 | * from their contributions on DScaler. |
| 11 | */ |
| 12 | |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 13 | #include <linux/i2c.h> |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 14 | #include <linux/delay.h> |
Michael Krufky | ffbb807 | 2007-08-21 01:14:12 -0300 | [diff] [blame] | 15 | #include <linux/videodev.h> |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 16 | #include "tuner-i2c.h" |
| 17 | #include "tea5767.h" |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 18 | |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 19 | static int debug = 0; |
| 20 | module_param(debug, int, 0644); |
| 21 | MODULE_PARM_DESC(debug, "enable verbose debug messages"); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 22 | |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 23 | #define PREFIX "tea5767 " |
Hans Verkuil | fac9e89 | 2006-01-09 15:32:40 -0200 | [diff] [blame] | 24 | |
Michael Krufky | db8a695 | 2007-08-21 01:24:42 -0300 | [diff] [blame] | 25 | struct tea5767_priv { |
| 26 | struct tuner_i2c_props i2c_props; |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 27 | |
| 28 | u32 frequency; |
Michael Krufky | db8a695 | 2007-08-21 01:24:42 -0300 | [diff] [blame] | 29 | }; |
| 30 | |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 31 | /*****************************************************************************/ |
| 32 | |
| 33 | /****************************** |
| 34 | * Write mode register values * |
| 35 | ******************************/ |
| 36 | |
| 37 | /* First register */ |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 38 | #define TEA5767_MUTE 0x80 /* Mutes output */ |
| 39 | #define TEA5767_SEARCH 0x40 /* Activates station search */ |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 40 | /* Bits 0-5 for divider MSB */ |
| 41 | |
| 42 | /* Second register */ |
| 43 | /* Bits 0-7 for divider LSB */ |
| 44 | |
| 45 | /* Third register */ |
| 46 | |
| 47 | /* Station search from botton to up */ |
| 48 | #define TEA5767_SEARCH_UP 0x80 |
| 49 | |
| 50 | /* Searches with ADC output = 10 */ |
| 51 | #define TEA5767_SRCH_HIGH_LVL 0x60 |
| 52 | |
| 53 | /* Searches with ADC output = 10 */ |
| 54 | #define TEA5767_SRCH_MID_LVL 0x40 |
| 55 | |
| 56 | /* Searches with ADC output = 5 */ |
| 57 | #define TEA5767_SRCH_LOW_LVL 0x20 |
| 58 | |
| 59 | /* if on, div=4*(Frf+Fif)/Fref otherwise, div=4*(Frf-Fif)/Freq) */ |
| 60 | #define TEA5767_HIGH_LO_INJECT 0x10 |
| 61 | |
| 62 | /* Disable stereo */ |
| 63 | #define TEA5767_MONO 0x08 |
| 64 | |
| 65 | /* Disable right channel and turns to mono */ |
| 66 | #define TEA5767_MUTE_RIGHT 0x04 |
| 67 | |
| 68 | /* Disable left channel and turns to mono */ |
| 69 | #define TEA5767_MUTE_LEFT 0x02 |
| 70 | |
| 71 | #define TEA5767_PORT1_HIGH 0x01 |
| 72 | |
Hans Verkuil | 27487d4 | 2006-01-15 15:04:52 -0200 | [diff] [blame] | 73 | /* Fourth register */ |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 74 | #define TEA5767_PORT2_HIGH 0x80 |
| 75 | /* Chips stops working. Only I2C bus remains on */ |
| 76 | #define TEA5767_STDBY 0x40 |
| 77 | |
| 78 | /* Japan freq (76-108 MHz. If disabled, 87.5-108 MHz */ |
| 79 | #define TEA5767_JAPAN_BAND 0x20 |
| 80 | |
| 81 | /* Unselected means 32.768 KHz freq as reference. Otherwise Xtal at 13 MHz */ |
| 82 | #define TEA5767_XTAL_32768 0x10 |
| 83 | |
| 84 | /* Cuts weak signals */ |
| 85 | #define TEA5767_SOFT_MUTE 0x08 |
| 86 | |
| 87 | /* Activates high cut control */ |
| 88 | #define TEA5767_HIGH_CUT_CTRL 0x04 |
| 89 | |
| 90 | /* Activates stereo noise control */ |
| 91 | #define TEA5767_ST_NOISE_CTL 0x02 |
| 92 | |
| 93 | /* If activate PORT 1 indicates SEARCH or else it is used as PORT1 */ |
| 94 | #define TEA5767_SRCH_IND 0x01 |
| 95 | |
Hans Verkuil | 27487d4 | 2006-01-15 15:04:52 -0200 | [diff] [blame] | 96 | /* Fifth register */ |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 97 | |
| 98 | /* By activating, it will use Xtal at 13 MHz as reference for divider */ |
| 99 | #define TEA5767_PLLREF_ENABLE 0x80 |
| 100 | |
| 101 | /* By activating, deemphasis=50, or else, deemphasis of 50us */ |
| 102 | #define TEA5767_DEEMPH_75 0X40 |
| 103 | |
| 104 | /***************************** |
| 105 | * Read mode register values * |
| 106 | *****************************/ |
| 107 | |
| 108 | /* First register */ |
| 109 | #define TEA5767_READY_FLAG_MASK 0x80 |
| 110 | #define TEA5767_BAND_LIMIT_MASK 0X40 |
| 111 | /* Bits 0-5 for divider MSB after search or preset */ |
| 112 | |
| 113 | /* Second register */ |
| 114 | /* Bits 0-7 for divider LSB after search or preset */ |
| 115 | |
| 116 | /* Third register */ |
| 117 | #define TEA5767_STEREO_MASK 0x80 |
| 118 | #define TEA5767_IF_CNTR_MASK 0x7f |
| 119 | |
Hans Verkuil | 27487d4 | 2006-01-15 15:04:52 -0200 | [diff] [blame] | 120 | /* Fourth register */ |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 121 | #define TEA5767_ADC_LEVEL_MASK 0xf0 |
| 122 | |
| 123 | /* should be 0 */ |
| 124 | #define TEA5767_CHIP_ID_MASK 0x0f |
| 125 | |
Hans Verkuil | 27487d4 | 2006-01-15 15:04:52 -0200 | [diff] [blame] | 126 | /* Fifth register */ |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 127 | /* Reserved for future extensions */ |
| 128 | #define TEA5767_RESERVED_MASK 0xff |
| 129 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 130 | enum tea5767_xtal_freq { |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 131 | TEA5767_LOW_LO_32768 = 0, |
| 132 | TEA5767_HIGH_LO_32768 = 1, |
| 133 | TEA5767_LOW_LO_13MHz = 2, |
| 134 | TEA5767_HIGH_LO_13MHz = 3, |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 135 | }; |
| 136 | |
| 137 | |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 138 | /*****************************************************************************/ |
| 139 | |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 140 | static void tea5767_status_dump(unsigned char *buffer) |
| 141 | { |
| 142 | unsigned int div, frq; |
| 143 | |
| 144 | if (TEA5767_READY_FLAG_MASK & buffer[0]) |
| 145 | printk(PREFIX "Ready Flag ON\n"); |
| 146 | else |
| 147 | printk(PREFIX "Ready Flag OFF\n"); |
| 148 | |
| 149 | if (TEA5767_BAND_LIMIT_MASK & buffer[0]) |
| 150 | printk(PREFIX "Tuner at band limit\n"); |
| 151 | else |
| 152 | printk(PREFIX "Tuner not at band limit\n"); |
| 153 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 154 | div = ((buffer[0] & 0x3f) << 8) | buffer[1]; |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 155 | |
| 156 | switch (TEA5767_HIGH_LO_32768) { |
| 157 | case TEA5767_HIGH_LO_13MHz: |
Mauro Carvalho Chehab | c5287ba | 2005-07-15 03:56:28 -0700 | [diff] [blame] | 158 | frq = (div * 50000 - 700000 - 225000) / 4; /* Freq in KHz */ |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 159 | break; |
| 160 | case TEA5767_LOW_LO_13MHz: |
Mauro Carvalho Chehab | c5287ba | 2005-07-15 03:56:28 -0700 | [diff] [blame] | 161 | frq = (div * 50000 + 700000 + 225000) / 4; /* Freq in KHz */ |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 162 | break; |
| 163 | case TEA5767_LOW_LO_32768: |
Mauro Carvalho Chehab | c5287ba | 2005-07-15 03:56:28 -0700 | [diff] [blame] | 164 | frq = (div * 32768 + 700000 + 225000) / 4; /* Freq in KHz */ |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 165 | break; |
| 166 | case TEA5767_HIGH_LO_32768: |
| 167 | default: |
Mauro Carvalho Chehab | c5287ba | 2005-07-15 03:56:28 -0700 | [diff] [blame] | 168 | frq = (div * 32768 - 700000 - 225000) / 4; /* Freq in KHz */ |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 169 | break; |
| 170 | } |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 171 | buffer[0] = (div >> 8) & 0x3f; |
| 172 | buffer[1] = div & 0xff; |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 173 | |
| 174 | printk(PREFIX "Frequency %d.%03d KHz (divider = 0x%04x)\n", |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 175 | frq / 1000, frq % 1000, div); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 176 | |
| 177 | if (TEA5767_STEREO_MASK & buffer[2]) |
| 178 | printk(PREFIX "Stereo\n"); |
| 179 | else |
| 180 | printk(PREFIX "Mono\n"); |
| 181 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 182 | printk(PREFIX "IF Counter = %d\n", buffer[2] & TEA5767_IF_CNTR_MASK); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 183 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 184 | printk(PREFIX "ADC Level = %d\n", |
| 185 | (buffer[3] & TEA5767_ADC_LEVEL_MASK) >> 4); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 186 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 187 | printk(PREFIX "Chip ID = %d\n", (buffer[3] & TEA5767_CHIP_ID_MASK)); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 188 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 189 | printk(PREFIX "Reserved = 0x%02x\n", |
| 190 | (buffer[4] & TEA5767_RESERVED_MASK)); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 191 | } |
| 192 | |
| 193 | /* Freq should be specifyed at 62.5 Hz */ |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 194 | static int set_radio_freq(struct dvb_frontend *fe, |
| 195 | struct analog_parameters *params) |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 196 | { |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 197 | struct tea5767_priv *priv = fe->tuner_priv; |
| 198 | unsigned int frq = params->frequency; |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 199 | unsigned char buffer[5]; |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 200 | unsigned div; |
| 201 | int rc; |
| 202 | |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 203 | tuner_dbg("radio freq = %d.%03d MHz\n", frq/16000,(frq/16)%1000); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 204 | |
| 205 | /* Rounds freq to next decimal value - for 62.5 KHz step */ |
| 206 | /* frq = 20*(frq/16)+radio_frq[frq%16]; */ |
| 207 | |
| 208 | buffer[2] = TEA5767_PORT1_HIGH; |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 209 | buffer[3] = TEA5767_PORT2_HIGH | TEA5767_HIGH_CUT_CTRL | |
| 210 | TEA5767_ST_NOISE_CTL | TEA5767_JAPAN_BAND; |
| 211 | buffer[4] = 0; |
| 212 | |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 213 | if (params->audmode == V4L2_TUNER_MODE_MONO) { |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 214 | tuner_dbg("TEA5767 set to mono\n"); |
| 215 | buffer[2] |= TEA5767_MONO; |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 216 | } else { |
| 217 | tuner_dbg("TEA5767 set to stereo\n"); |
| 218 | } |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 219 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 220 | /* Should be replaced */ |
| 221 | switch (TEA5767_HIGH_LO_32768) { |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 222 | case TEA5767_HIGH_LO_13MHz: |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 223 | tuner_dbg("radio HIGH LO inject xtal @ 13 MHz\n"); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 224 | buffer[2] |= TEA5767_HIGH_LO_INJECT; |
| 225 | buffer[4] |= TEA5767_PLLREF_ENABLE; |
Hans Verkuil | 27487d4 | 2006-01-15 15:04:52 -0200 | [diff] [blame] | 226 | div = (frq * (4000 / 16) + 700000 + 225000 + 25000) / 50000; |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 227 | break; |
| 228 | case TEA5767_LOW_LO_13MHz: |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 229 | tuner_dbg("radio LOW LO inject xtal @ 13 MHz\n"); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 230 | |
| 231 | buffer[4] |= TEA5767_PLLREF_ENABLE; |
Hans Verkuil | 27487d4 | 2006-01-15 15:04:52 -0200 | [diff] [blame] | 232 | div = (frq * (4000 / 16) - 700000 - 225000 + 25000) / 50000; |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 233 | break; |
| 234 | case TEA5767_LOW_LO_32768: |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 235 | tuner_dbg("radio LOW LO inject xtal @ 32,768 MHz\n"); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 236 | buffer[3] |= TEA5767_XTAL_32768; |
| 237 | /* const 700=4000*175 Khz - to adjust freq to right value */ |
Hans Verkuil | 27487d4 | 2006-01-15 15:04:52 -0200 | [diff] [blame] | 238 | div = ((frq * (4000 / 16) - 700000 - 225000) + 16384) >> 15; |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 239 | break; |
| 240 | case TEA5767_HIGH_LO_32768: |
| 241 | default: |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 242 | tuner_dbg("radio HIGH LO inject xtal @ 32,768 MHz\n"); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 243 | |
| 244 | buffer[2] |= TEA5767_HIGH_LO_INJECT; |
| 245 | buffer[3] |= TEA5767_XTAL_32768; |
Mauro Carvalho Chehab | c5287ba | 2005-07-15 03:56:28 -0700 | [diff] [blame] | 246 | div = ((frq * (4000 / 16) + 700000 + 225000) + 16384) >> 15; |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 247 | break; |
| 248 | } |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 249 | buffer[0] = (div >> 8) & 0x3f; |
| 250 | buffer[1] = div & 0xff; |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 251 | |
Michael Krufky | db8a695 | 2007-08-21 01:24:42 -0300 | [diff] [blame] | 252 | if (5 != (rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 5))) |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 253 | tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc); |
Mauro Carvalho Chehab | c5287ba | 2005-07-15 03:56:28 -0700 | [diff] [blame] | 254 | |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 255 | if (debug) { |
Michael Krufky | db8a695 | 2007-08-21 01:24:42 -0300 | [diff] [blame] | 256 | if (5 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buffer, 5))) |
Mauro Carvalho Chehab | c5287ba | 2005-07-15 03:56:28 -0700 | [diff] [blame] | 257 | tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc); |
| 258 | else |
| 259 | tea5767_status_dump(buffer); |
| 260 | } |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 261 | |
| 262 | priv->frequency = frq * 125 / 2; |
| 263 | |
| 264 | return 0; |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 265 | } |
| 266 | |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 267 | static int tea5767_signal(struct dvb_frontend *fe) |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 268 | { |
| 269 | unsigned char buffer[5]; |
| 270 | int rc; |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 271 | struct tea5767_priv *priv = fe->tuner_priv; |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 272 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 273 | memset(buffer, 0, sizeof(buffer)); |
Michael Krufky | db8a695 | 2007-08-21 01:24:42 -0300 | [diff] [blame] | 274 | if (5 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buffer, 5))) |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 275 | tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 276 | |
Hans Verkuil | f9a91f0 | 2006-01-09 15:25:42 -0200 | [diff] [blame] | 277 | return ((buffer[3] & TEA5767_ADC_LEVEL_MASK) << 8); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 278 | } |
| 279 | |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 280 | static int tea5767_stereo(struct dvb_frontend *fe) |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 281 | { |
| 282 | unsigned char buffer[5]; |
| 283 | int rc; |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 284 | struct tea5767_priv *priv = fe->tuner_priv; |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 285 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 286 | memset(buffer, 0, sizeof(buffer)); |
Michael Krufky | db8a695 | 2007-08-21 01:24:42 -0300 | [diff] [blame] | 287 | if (5 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buffer, 5))) |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 288 | tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 289 | |
| 290 | rc = buffer[2] & TEA5767_STEREO_MASK; |
| 291 | |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 292 | tuner_dbg("radio ST GET = %02x\n", rc); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 293 | |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 294 | return ((buffer[2] & TEA5767_STEREO_MASK) ? V4L2_TUNER_SUB_STEREO : 0); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 295 | } |
| 296 | |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 297 | static int tea5767_get_status(struct dvb_frontend *fe, u32 *status) |
| 298 | { |
| 299 | struct tea5767_priv *priv = fe->tuner_priv; |
| 300 | int signal = tea5767_signal(fe); |
| 301 | *status = 0; |
| 302 | |
| 303 | if (signal) |
| 304 | *status = TUNER_STATUS_LOCKED; |
| 305 | if (tea5767_stereo(fe)) |
| 306 | *status |= TUNER_STATUS_STEREO; |
| 307 | |
| 308 | tuner_dbg("tea5767: Signal strength: %d\n", signal); |
| 309 | |
| 310 | return 0; |
| 311 | } |
| 312 | |
| 313 | static int tea5767_standby(struct dvb_frontend *fe) |
Mauro Carvalho Chehab | 793cf9e | 2005-09-09 13:03:37 -0700 | [diff] [blame] | 314 | { |
| 315 | unsigned char buffer[5]; |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 316 | struct tea5767_priv *priv = fe->tuner_priv; |
Mauro Carvalho Chehab | 793cf9e | 2005-09-09 13:03:37 -0700 | [diff] [blame] | 317 | unsigned div, rc; |
| 318 | |
| 319 | div = (87500 * 4 + 700 + 225 + 25) / 50; /* Set frequency to 87.5 MHz */ |
| 320 | buffer[0] = (div >> 8) & 0x3f; |
| 321 | buffer[1] = div & 0xff; |
| 322 | buffer[2] = TEA5767_PORT1_HIGH; |
| 323 | buffer[3] = TEA5767_PORT2_HIGH | TEA5767_HIGH_CUT_CTRL | |
| 324 | TEA5767_ST_NOISE_CTL | TEA5767_JAPAN_BAND | TEA5767_STDBY; |
| 325 | buffer[4] = 0; |
| 326 | |
Michael Krufky | db8a695 | 2007-08-21 01:24:42 -0300 | [diff] [blame] | 327 | if (5 != (rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 5))) |
Mauro Carvalho Chehab | 793cf9e | 2005-09-09 13:03:37 -0700 | [diff] [blame] | 328 | tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc); |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 329 | |
| 330 | return 0; |
Mauro Carvalho Chehab | 793cf9e | 2005-09-09 13:03:37 -0700 | [diff] [blame] | 331 | } |
| 332 | |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 333 | int tea5767_autodetection(struct i2c_adapter* i2c_adap, u8 i2c_addr) |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 334 | { |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 335 | struct tuner_i2c_props i2c = { .adap = i2c_adap, .addr = i2c_addr }; |
Mauro Carvalho Chehab | fd3113e | 2005-07-31 22:34:43 -0700 | [diff] [blame] | 336 | unsigned char buffer[7] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 337 | int rc; |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 338 | |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 339 | if ((rc = tuner_i2c_xfer_recv(&i2c, buffer, 7))< 5) { |
| 340 | printk(KERN_WARNING "It is not a TEA5767. Received %i bytes.\n", rc); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 341 | return EINVAL; |
| 342 | } |
| 343 | |
Mauro Carvalho Chehab | fd3113e | 2005-07-31 22:34:43 -0700 | [diff] [blame] | 344 | /* If all bytes are the same then it's a TV tuner and not a tea5767 */ |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 345 | if (buffer[0] == buffer[1] && buffer[0] == buffer[2] && |
| 346 | buffer[0] == buffer[3] && buffer[0] == buffer[4]) { |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 347 | printk(KERN_WARNING "All bytes are equal. It is not a TEA5767\n"); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 348 | return EINVAL; |
| 349 | } |
| 350 | |
| 351 | /* Status bytes: |
| 352 | * Byte 4: bit 3:1 : CI (Chip Identification) == 0 |
Mauro Carvalho Chehab | f7ce3cc | 2005-07-12 13:58:55 -0700 | [diff] [blame] | 353 | * bit 0 : internally set to 0 |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 354 | * Byte 5: bit 7:0 : == 0 |
| 355 | */ |
Mauro Carvalho Chehab | 793cf9e | 2005-09-09 13:03:37 -0700 | [diff] [blame] | 356 | if (((buffer[3] & 0x0f) != 0x00) || (buffer[4] != 0x00)) { |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 357 | printk(KERN_WARNING "Chip ID is not zero. It is not a TEA5767\n"); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 358 | return EINVAL; |
| 359 | } |
Mauro Carvalho Chehab | c5287ba | 2005-07-15 03:56:28 -0700 | [diff] [blame] | 360 | |
Mauro Carvalho Chehab | 001abc9 | 2005-08-01 21:11:38 -0700 | [diff] [blame] | 361 | /* It seems that tea5767 returns 0xff after the 5th byte */ |
| 362 | if ((buffer[5] != 0xff) || (buffer[6] != 0xff)) { |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 363 | printk(KERN_WARNING "Returned more than 5 bytes. It is not a TEA5767\n"); |
Mauro Carvalho Chehab | 001abc9 | 2005-08-01 21:11:38 -0700 | [diff] [blame] | 364 | return EINVAL; |
| 365 | } |
| 366 | |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 367 | printk(KERN_WARNING "TEA5767 detected.\n"); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 368 | return 0; |
| 369 | } |
| 370 | |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 371 | static int tea5767_release(struct dvb_frontend *fe) |
Michael Krufky | db8a695 | 2007-08-21 01:24:42 -0300 | [diff] [blame] | 372 | { |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 373 | kfree(fe->tuner_priv); |
| 374 | fe->tuner_priv = NULL; |
| 375 | |
| 376 | return 0; |
Michael Krufky | db8a695 | 2007-08-21 01:24:42 -0300 | [diff] [blame] | 377 | } |
| 378 | |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 379 | static int tea5767_get_frequency(struct dvb_frontend *fe, u32 *frequency) |
| 380 | { |
| 381 | struct tea5767_priv *priv = fe->tuner_priv; |
| 382 | *frequency = priv->frequency; |
| 383 | return 0; |
| 384 | } |
| 385 | |
| 386 | static struct dvb_tuner_ops tea5767_tuner_ops = { |
| 387 | .info = { |
| 388 | .name = "tea5767", // Philips TEA5767HN FM Radio |
| 389 | }, |
| 390 | |
| 391 | .set_analog_params = set_radio_freq, |
| 392 | .sleep = tea5767_standby, |
| 393 | .release = tea5767_release, |
| 394 | .get_frequency = tea5767_get_frequency, |
| 395 | .get_status = tea5767_get_status, |
Michael Krufky | 0f838f8 | 2007-06-06 16:17:17 -0300 | [diff] [blame] | 396 | }; |
| 397 | |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 398 | struct dvb_frontend *tea5767_attach(struct dvb_frontend *fe, |
| 399 | struct i2c_adapter* i2c_adap, |
| 400 | u8 i2c_addr) |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 401 | { |
Michael Krufky | db8a695 | 2007-08-21 01:24:42 -0300 | [diff] [blame] | 402 | struct tea5767_priv *priv = NULL; |
| 403 | |
| 404 | priv = kzalloc(sizeof(struct tea5767_priv), GFP_KERNEL); |
| 405 | if (priv == NULL) |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 406 | return NULL; |
| 407 | fe->tuner_priv = priv; |
Michael Krufky | db8a695 | 2007-08-21 01:24:42 -0300 | [diff] [blame] | 408 | |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 409 | priv->i2c_props.addr = i2c_addr; |
| 410 | priv->i2c_props.adap = i2c_adap; |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 411 | |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 412 | memcpy(&fe->ops.tuner_ops, &tea5767_tuner_ops, |
| 413 | sizeof(struct dvb_tuner_ops)); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 414 | |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 415 | tuner_info("type set to %s\n", "Philips TEA5767HN FM Radio"); |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 416 | |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 417 | return fe; |
Mauro Carvalho Chehab | 586b0ca | 2005-06-28 20:45:21 -0700 | [diff] [blame] | 418 | } |
Michael Krufky | 8d0936e | 2007-08-27 21:24:27 -0300 | [diff] [blame^] | 419 | |
| 420 | |
| 421 | EXPORT_SYMBOL_GPL(tea5767_attach); |
| 422 | EXPORT_SYMBOL_GPL(tea5767_autodetection); |
| 423 | |
| 424 | MODULE_DESCRIPTION("Philips TEA5767 FM tuner driver"); |
| 425 | MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>"); |
| 426 | MODULE_LICENSE("GPL"); |